QUESTION 25 \"Holes\" are free protons that can provide charge carriers for curr

Question

QUESTION 25 "Holes" are free protons that can provide charge carriers for current flow False QUESTION 26 If a p-type material is brought into contact with an n-type material, there will be a brief internal movement of charges even in the absence of an external electric field True False QUESTION 27 What type of transistor is commonly used in modern integrated circuits? NPN MOSFET PNP FET QUESTION 28 A junction transistor has how many pn junctions? QUESTION 29 The unit of conductance is "Ohm" spelled backwards ("Mho") True False QUESTION 30 Electrons that are excited into the "Conduction Band" are available for current flow True False QUESTION 31 Thin single crystals used for fiber reinforcement are called whiskers. True False QUESTION 32 The matrix phase of a composite material is discontinuous. False

Explanation / Answer

25] True.

A charge carrier is a particle free to move, carrying an electric charge, especially the particles that carry electric charges in electrical conductors. Examples are electrons, ions and holes.

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